Car-axle box.



E. SHARPNEGK.

GAR KLB B0X. APPLICATION FILED JULY 20,1910.

nnrrsn sTeTns PATENT serios.

ELIEL L. SHARPNECK, OF WINTI-IROP, MASSACHUSETTS, ASSIGNOR TANTLFRICTION ROLLER BEARING COMJNY, A. CORPORATION OF ARIZONA. i

CARJLXLE BOX.

modica.

Specification of Letters llatent.

Application led July 20, 1910.

.Patented June 16, 1214s. Serial No. 572,826.

To all whom it may conce/m;

Be it known that l, ELIEL L, SrrAnrNncn, of lVinthrop, in the county ofSullollr and State of Massachusetts, have invented certain new anduseful Improvements in Can Axle Boxes, ot' which the following aspecilication, reference being had to the accompanying drawings, formingpart thereof.

This invention has reference to improvements in car boxes andparticularly to car axle bones provided with antifriction beariiigs, socalled.

One object ofthe invention is to so construct a car axle bonv havingantifriction bearings for the car axle that automatic circulation oflubricant through said bearings may be cllccted.

Another object of the invention is to iniprove the construction of caraxle boxes and their bearings.

The invention consists in the novel con-` struction of the car axle boxand its anti friction bearings.'

The invention also consists in the novel means for supplying lubricantto said bearings.

T he invention also consists in such other novel features ofconstruction and combi nation of parts as shall hereinafter be morefully described and pointed out in the claim. v

Figure 1, represents a vertical sectional view of the improved car axlebox taken on line 1 1 Fig. 2, parts yof the same being shown in full.Fig. 2, represents a View partly in end elevation and partly in .secstion, on line 2-2 Fig, 1. Fig. 3, represents an enlarged detail View ofa portion of the lubricant carrying chain.

Similar numerals of reference designate corresponding parts throughout.

As shown in the drawings, in its pre- 'erred form, 5 represents the caraxle box having the end 6, furnished with the opening 7 for the axle a,and`- the open-end 8 rovided with the closure 9. Within the igor: is theannular Way 10 the lower portion of which is formed by the partition 11having the openings 12, 12 and 13 While, below said partition 11, thebottom ot the bonr forms the oil reservoir 14 andghas a. draw oli'opening closed by the plug 15.

Rotatably mounted in the Way is a roller .bearing comprising the annularseries of rolls 16, 16, rotatably mounted. on the shafts 17, 17 the endsof which are driven into sockets respectively ot the rings 18 and 19 andthe whole formingr a caire to receive the axle a 'for which the rolls1G, 1G form a bearing free to move with said axle. 18 has the V shapedgroove, or ball race 20 and the rim 21 in which the collar 22 ismounted. and held from outward movement by said collar, is theantilfriction rino; 23 having' a V shaped groove or ball race 241between which and the ,rfroove 2O is located a series of balls 25. 25 sothat the ring' 23 may act as an antifriction thrust 'nearing` it broughtinto contactwith the end G of the box or casing;

Ring' 19 has the peripheral groove 26 furnished adjacent to each of theshafts 17, 17 'with inclined ducts 2T, 27 which communicate with theface of said ring- 19 against which the rolls 16, 16 hear at'or near theperiphery of the shafts 17, 17 so that oil passing through said ducts isdelivered to the ends of the rolls 16, It and to the pe ripheries of theshafts 17, 17. Said ring 19 has in its end the V shaped groove or ballWay 28 and the peripheral rim 29 in which the collar 30 is mountedwhereby the antifriction 'ring 31 is retained in position so that its l!shaped groove or ball. wav 32 bears at two points against the halls 33,33 located between said ball Way l2 and the similar ball wey 28 of thering 19. llngaired With-the groove .26 of ring 19 is the endless chain34 the alternate links 35 ot which have depressions 35 in their ends asshown' in Fig. 3. This chain 811 extends through the openings 12, 12 inthe partition 11 and into the oil, reservoir 111 as shown.

The closure 9 has the pocket 35 furnished with on inlet closed by thescrew plug'? and, said closure, is provided with the collar 38. Withinsaid pocket 36 is seated the block 39 having' the V shaped ball WaysL10, 40 for the halls 42, 48 against which similar ball Ways 44, of thethrust resisting member 46 bear, said member 46 beingF rotatablyretained against said balls 44, 4:5 oy the collar 38 bearing against theenlargement 46 of said member 16.

Comparatively thin oil or other lubricant is supplied through the inletin the closure 9 and the plug 37, of said inlet, is then replaced; suchlubricant passes down between the blocks 39 and the member 4G until itHows over the edge or' the soltar 38, which gg l1,100,402

collar retains a portion of thev lubricant within the pocket 36. Thelubricant then passes down inside the box or casing 5 and through theopenings 12, 12 in the partition 11 to the reservoir 14.

In operation the rotation of the shaft or axle a causes the rotation ofthe rolls 16, 16 and, such rolls being in contact with the way 10, thecage, formed by said rolls, their shafts and the rings 18 and 19,revolve around axle a and effects the driving of the chain 34 wherebythe lubricant taken up by said chain in the cups 35 thereof or adheringto the chain, during the passage of the chain through the lubricant inreservoir 14, is delivered to the groove 26 from whence said lubricantJflows through the ducts 27, 27 to the shafts 17 and along said shafts tothe 'ring 18, the surplus lubricant finally iiowing back through theopening. 13, in partition 11, to the reservoir 14.

Vilhile thisimproved box is closed to the entrance of coarse dust andgrit, by .the

closure 9 and the washer 47, bearin against the axle a at the opening 7of the ox, it is found, that after considerable use, fine grit sometimesWorks its Way into the box but such Agrit is carried, by the iow of thelubricant, into the reservoir 14 and when the lubricant becomes undulycharged with such :1

grit said lubricant may be drawn off through the opening normally closedby the plug 15.

Having thus described my invention, 1 claim as new .and desire to secureby Letters Patent- A car axle box comprising a casing, an axle endjournaled therein, an end thrust bearing of less diameter than the axleend, an anti-friction bearing surroundin one end of the thrust bearingand in space rela tion thereto to provide a chamber, an oil reservoir,shafts mounted in said anti-friction bearing to receive rollers, saidantifriction bearing having conduits to each of said shafts, and aexible means comprising a chain suspended over said anti-frictionbearing and extending into said oil reservoir for transferring thelubricant to said roller and end thrust bearings, said chain beingformed of llinks provided with recesses y therein to carry thelubricant.

ELIEL L. SHARPNECK.

YVitnesses FRANCIS J. GEOGAN, HENRY J. MILLER.

